US Bridges

Westchester Avenue over No. 9 Trolley Trail

FairPosted for load

Baltimore County, Maryland · 0.2 MI N Frederick RD · Structure no. 200000B-0055010

Built
1900
125 years old, rebuilt 1988
Condition
Fair
inspected January 2024
Type
Truss - Thru
Steel
Length
102 ft
1 main span
Daily traffic
1,741
2024 count
Owner
County
County Highway Agency

About this bridge

Westchester Avenue over No. 9 Trolley Trail is a steel truss - thru carrying Westchester Avenue over No. 9 Trolley Trail in Baltimore County, Maryland. It was built in 1900 and reconstructed in 1988, so it is 125 years old, older than the Maryland average of 52.6 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 1,741 vehicles a day, roughly 5% of them trucks, projected to reach 2,566 by 2044. The structure is 102 ft (31.1 m) long and 16 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesWestchester Avenue
CrossesNo. 9 Trolley Trail
Location0.2 MI N Frederick RD
RouteCounty Highway 2929
CountyBaltimore County
StateMaryland
Coordinates39.26821, -76.79122
Functional classUrban Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment6: Equal to present minimum criteria
Operating rating43.5 US tons
Inventory rating26 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckSteel plate
Main spans1
Design loadHS 20
Structure length102 ft (31.1 m)
Longest span101 ft (30.8 m)
Deck width16 ft (5 m)
Roadway width13 ft (4.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,741 (2024)
Projected traffic2,566 by 2044
Trucks5%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesPedestrian / bicycle
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Westchester Avenue over No. 9 Trolley Trail built?

It was built in 1900, making it 125 years old in 2025. It was reconstructed in 1988.

What condition is Westchester Avenue over No. 9 Trolley Trail in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in January 2024.

How much traffic does Westchester Avenue over No. 9 Trolley Trail carry?

About 1,741 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is Westchester Avenue over No. 9 Trolley Trail?

The structure is 102 ft (31.1 m) long with a longest span of 101 ft (30.8 m) and a deck 16 ft wide.

Who owns Westchester Avenue over No. 9 Trolley Trail?

It is owned by the County Highway Agency.